From: Eli Zaretskii <eliz@is.elta.co.il>
To: jimb@zwingli.cygnus.com
Cc: gdb-patches@sources.redhat.com, msnyder@cygnus.com
Subject: Re: RFA: don't try to compare IEEE NaN's
Date: Tue, 05 Jun 2001 23:14:00 -0000 [thread overview]
Message-ID: <200106060615.JAA14470@is.elta.co.il> (raw)
In-Reply-To: <20010606034145.7D5065E9CB@zwingli.cygnus.com>
> From: Jim Blandy <jimb@zwingli.cygnus.com>
> Date: Tue, 5 Jun 2001 22:41:45 -0500 (EST)
>
> ! testval.float_testval = 2.7182818284590452354;/* long_long_checkpoint */
> ! float_resultval = float_func ();
> ! testval.double_testval = 3.14159265358979323846; /* float_checkpoint */
> ! double_resultval = double_func ();
I think it is better to initialize the integral members of the union
with an explicit bit pattern, just not a pattern which gets
interpreted as a NaN of an Inf. With initialization such as above,
you risk losing due to subtleties of compile-time conversion of a
literal constant to a floating-point value. This is a GDB test suite,
so we are not interested in testing the compiler.
next prev parent reply other threads:[~2001-06-05 23:14 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-06-05 20:40 Jim Blandy
2001-06-05 23:14 ` Eli Zaretskii [this message]
2001-06-06 6:54 ` Fernando Nasser
2001-06-06 7:27 ` Jim Blandy
2001-06-06 8:46 ` Eli Zaretskii
2001-06-06 9:15 ` Fernando Nasser
2001-06-06 11:38 ` Jim Blandy
2001-06-06 11:52 ` Fernando Nasser
2001-06-06 13:59 ` Michael Snyder
2001-06-06 23:20 ` Eli Zaretskii
2001-06-06 23:19 ` Eli Zaretskii
2001-06-06 10:37 ` Jim Blandy
2001-06-06 10:55 ` Michael Snyder
2001-06-06 11:04 ` Fernando Nasser
2001-06-06 11:15 ` Michael Snyder
2001-06-06 15:08 ` Jim Blandy
2001-06-06 23:19 ` Eli Zaretskii
2001-06-06 23:19 ` Eli Zaretskii
2001-06-07 10:38 ` Michael Snyder
2001-06-07 11:38 ` Eli Zaretskii
2001-06-06 13:17 ` Michael Meissner
2001-06-06 13:45 ` Fernando Nasser
2001-06-06 23:21 ` Eli Zaretskii
2001-06-06 6:45 ` Fernando Nasser
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